Base | Representation |
---|---|
bin | 1000011011011… |
… | …00111110110100 |
3 | 11221000222111211 |
4 | 10031230332310 |
5 | 121044412410 |
6 | 11003211204 |
7 | 1515643210 |
oct | 415547664 |
9 | 157028454 |
10 | 70700980 |
11 | 369aa769 |
12 | 1b816b04 |
13 | 118558cc |
14 | 9565940 |
15 | 631868a |
hex | 436cfb4 |
70700980 has 48 divisors (see below), whose sum is σ = 170472960. Its totient is φ = 24127488.
The previous prime is 70700941. The next prime is 70700983. The reversal of 70700980 is 8900707.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (70700983) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32404 + ... + 34516.
It is an arithmetic number, because the mean of its divisors is an integer number (3551520).
Almost surely, 270700980 is an apocalyptic number.
70700980 is a gapful number since it is divisible by the number (70) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 70700980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85236480).
70700980 is an abundant number, since it is smaller than the sum of its proper divisors (99771980).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
70700980 is a wasteful number, since it uses less digits than its factorization.
70700980 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2368 (or 2366 counting only the distinct ones).
The product of its (nonzero) digits is 3528, while the sum is 31.
The square root of 70700980 is about 8408.3874791782. The cubic root of 70700980 is about 413.4996483550.
The spelling of 70700980 in words is "seventy million, seven hundred thousand, nine hundred eighty".
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